body {
  margin: 0;
  height: 100vh;
  background: #eee;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loader {
  position: relative;
  width: 120px;
  height: 120px;
}

/* Anneaux de base */
.ring {
  width: 80px;
  height: 80px;
  border: 3px solid;
  border-radius: 50%;
  background: transparent;
}

/* Cercle bleu : centré et plus grand */
.center {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80px;
  height: 80px;
  transform: translate(-50%, -50%);
  z-index: 1;
}

.orbit {
  position: absolute;
  top: 20%;
  left: 15%;
  width: 80px;
  height: 80px;
  transform-origin: center center;
}

.orbit1 {
  animation: rotate 0.8s linear infinite;
}

.orbit2 {
  animation: rotate 0.8s linear infinite;
  animation-delay: 0.4s;
}

/* Position des anneaux mobiles : plus proches du centre */
.orbit .ring {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
}

/* Couleurs */
.blue {
  border-color: blue;
}

.red {
  border-color: red;
}

.yellow {
  border-color: yellow;
}

@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}